Study on Mechanical Model for Postpeak Shear Behavior of Rock Joints Based on Degradation Characteristics of the 3D Morphology

Figure 8

Stress–strain curves of rough joint surfaces under different normal stress: (a) 0.1 MPa; (b) 2.5 MPa; (c) 5.0 MPa; (d) 7.5 MPa; (e) 10.0 MPa; and (f) 12.5 MPa.

(a)

(b)

(c)

(d)

(e)

(f)